11.1 Test Access Port (TAP)

TAP Controller (Input)

• The JTMS signal operates the state machine synchronized by the JTCK signal.
• The TAP controller is reset by keeping the JTMS signal asserted through five consecutive edges of JTCK. This reset condition sets the reset state of the controller. The TAP controller is also reset by asserting SysReset*. This pin must not be asserted while using the boundary scan register.